Interactive physics simulations I built while teaching my daughter
I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action. She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations? Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results…
Interactive physics simulations I built while teaching my daughter launched on January 19, 2026 with 87 votes, #403 of 14,585 launches that month and more than 95% of that year's launches.
In plain words
Lumen is an interactive physics playground that simulates real-world experiments across sound, light, motion, life, and mechanics. Users manipulate variables in real-time to observe immediate results, making abstract physics concepts tangible and experiential. Designed for learners of all ages, it recreates hands-on demonstrations—from vibrating guitar strings to light mixing—that the creator found more effective than traditional instructional methods. Each module combines visual and auditory feedback to support deeper understanding of physical principles.
written from the facts on this page · September 2026
From the sources
Lumen is an interactive physics playground that makes learning about the natural world beautiful and engaging. Built with a Montessori-inspired approach: learn by doing, not just reading. Every simulation responds in real-time with smooth animations.
In the maker’s words, at launch
I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action. She learned so much faster through hands-on exploration than through books or videos. That's when I realized…
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